Matrix user forums

It's Solved. Thank you very much MARTIN. I post programs for others. But there are some problems. Values are well read. However, the values measured and measured with an actual multimeter are different. Using a 10Kohm volume, low voltage was applied to both sides, and the voltage drawn from the midd...

I think I am wrong. So, I modified the program using another MCU (PIC18F26K22) and another ADC (MCP3428).

But the result is not good. The first byte value comes in. However, only the value "255" comes in the second byte.

Pullup = 4.7KOhm

Somebody ask for advice.

With your help, I2C works fine. Thank you.
However, when reading in 16bit, the first byte comes in and the second byte is fixed at 255. I upload my modified program.

Thanks for your help.

The program has been modified again. The timer interrupt works fine.

Cleared the delay timer. And I looked at the datasheet. But I definitely used CH1. I don't know what's the problem.

I pulled up 4.7Kohm resistors on SDA, SCL.
And when viewed with an oscilloscope, the clock is not generated in SCL.
Heart count monitors MCU operation status. Heart count doesn't make sense here, but it works fine.

Hello!! I want to receive data from MCP3421 to I2C using PIC18F47Q10. However, no data is received. So, I verified it through the oscilloscope and logic analyzer, but there is no response from the MCU pin. No schematic problem. FC8 was also reinstalled. But the result is the same. Also, please revie...

As mentioned in https://www.matrixtsl.com/mmforums/view ... 76&t=22120,

Touch_Pad does not work at all in PIC18F47Q10.

Please Help me.

You may be very busy, but I hope you will solve my problem.
Thank you.

Whenever solve the problem?

Comfile is not running.

Thank you very much!!
Benj !!

I'm using final version. And update everyday.

Thank you

I want to use the touchpad. But it doesn't work. It works well with programs created by others (MPLab X IDE).
However, it does not work in FC8, and only 0 is displayed.

Please help me.

I have tried various things. But ADC doesn't work.

Here is my schematic.
Thanks for your help every time.

I changed the MCU to PIC18F47Q10 and tested it. However, the result is not good. When I used MAX485 and tested it in RS-232 TTL mode, the data is not perfect due to timing problems, but it works well. However, MODBUS RS-485 mode does not work. PIC18F47Q10 has UARTINT0, but UARTINT1 is not visible. S...

Thanks for your interest. Sometimes I make mistakes without my knowledge. But I've been working in industrial automatic control for 30 years. Therefore, I am well aware of what I told you.
Thanks for the advice.

I have used several methods, but it doesn't work. Replaced in anticipation of a defective chip. And I changed Read DDR from Low to Hihg. The received signal comes in as a result. However, it is not received from the communication program (Modbus Poll). If set serial TTL instead of Modbus mode, trans...

Hello?
I have a problem.
When compiling, an error similar to the screen occurs.
Please help me.

It was recognized by RS-232 communication. 1ms 1s timer works well.

Hi!
I am working on a project using PIC24fj256GA406.
MODBUS Slave mode does not work.
I checked RX and TX using RS-232 port and RS-485 converter.
I upload my program.
Please review.
Thank you.[/b]

Hello everybody!

I designed to use SPI by referring to the PIC24FJ256GA406 manual. The pin definition of SPI channel4 and FC8 are different in the manual. MISO and MOSI have been changed. My PCB is already made.

Is there any way to solve this?

Hello?
I need chime sounds (Ding~~Dong~) while working on the project.

I ask for help, thinking that there are some people who have tried it.

Thank you.

This is the rs-232 program I use.
I hope it helps.

Thanks for your advice. Share the schematic. As I advised, I knew there were some things I didn't know. I have no experience with FET. So, I want to use the FET Gate driver. Gate Driver wants to use ZXGD3001E6. The power supply voltage is 12V and the control voltage is 3.3V. However, the Vin voltage...